Test report no. : Item tested : DoseAware Base station

Transcription

1 Test report no. : Item tested : DoseAware Base station Type of equipment : Low power Transceiver MHz Electronic X-ray dose monitoring system FCC ID : XWK Client : Unfors Instruments AB FCC Part Low Power Transceiver MHz Band RSS-210, Issue 8 and RSS-GEN, Issue 3 Low-Power Licence-exempt Radiocommunications devices MHz Band 21 September 2011 Authorized by :... Frode Sveinsen Technical Verificator Nemko AS, Gaustadalléen 30, P.O.Box 73 Blindern, NO-0314 Oslo Norway T F Enterprise number NO Visiting address: Nemko Kjeller, Instituttveien 6, P.O.Box 96, NO-2027 Kjeller Norway T F

2 CONTENTS 1 GENERAL INFORMATION Testhouse Info Client Information Manufacturer Test Information Test Item Test Environment Test Period SUMMARY General Test Summary Description of modification for Modification Filing Comments Family List Rationale TEST RESULTS Power-line Conducted Emissions Transmitter Frequency Stability db Bandwidth Peak Power Output Band Edge Emissions Spurious Emissions (Radiated) Receiver Spurious Emissions (Conducted) LIST OF TEST EQUIPMENT BLOCK DIAGRAM System set up for radiated measurements Power line Conducted Emission Test Site Radiated Emission Nemko AS, NO-2027 Kjeller Page 2 (57)

3 1 GENERAL INFORMATION 1.1 Testhouse Info Name : Address : Nemko AS Nemko Kjeller Instituttveien 6, Box 96 NO-2027 Kjeller, NORWAY Telephone : Fax : FCC test firm : IC OATS : 2040D-1 Total Number of Pages: Client Information Name : comlab@nemko.no Unfors Instruments AB Address : Uggledalsvagen 29, SE Billdal Telephone : Fax : Contact: Name : Mats Quick Telephone : info@unfors.se 1.3 Manufacturer Same as client Nemko AS, NO-2027 Kjeller Page 3 (57)

4 2 Test Information 2.1 Test Item Name : DoseAware Base station Model/version : Serial number : / Hardware identity and/or version: / Software identity and/or version : / Frequency Range : MHz Number of Channels : 1 Operating Modes : Type of Modulation : Data rate: TX & RX GFSK 125kbit/s Emissions Designator : / User Frequency Adjustment : Rated Output Power : Type of Power Supply : Antenna Connector : None, Software controlled N/A AC/DC adapter Vac, 50Hz/60Hz None (Integral antenna) Antenna type: / Antenna Diversity Supported : None 1) Only one channel in use at a time. 2) The power is supplied by 120V AC mains via AC/DC adapter. Since the EUT has low drop out (LDO) regulator the voltage variation of 85% and 115% does not affect the output power or frequency tolerance. Theory of Operation The base station uses radio transceiver CC1100E from Texas instruments, which operates in the frequency band MHz. The base station is a part of a system called DoseAware. The base station displays the received radiation exposure in real time from the PDM(Personal dosimeter).the PDM is a portable radiation exposure measuring device worn by people who are working within the X- ray environment. Nemko AS, NO-2027 Kjeller Page 4 (57)

5 2.2 Test Environment Normal test condition Temperature: C Relative humidity: % Normal test voltage: 120 V AC (Mains) The values are the limit registered during the test period. 2.3 Test Period Item received date: Test period : from to Nemko AS, NO-2027 Kjeller Page 5 (57)

6 3 SUMMARY 3.1 General Manufacturer: Unfors Instruments AB Model No.: Serial No.: - All measurements are traceable to national standards. The tests were conducted for the purpose of demonstrating compliance with FCC CFR 47 Part Radiated tests were conducted in accordance with ANSI C and ANSI C The radiated tests were made in a semi-anechoic chamber at measuring distances of 3 and 10 meters. New Submission Production Unit Class II Permissive Change Pre-production Unit DXT Equipment Code Family Listing THIS RELATES ONLY TO THE ITEM (S) TESTED. Deviations from, additions to, or exclusions from the test specifications are described in Summary of Test Data. #: TESTED BY: DATE: G.Suhanthakumar, Test engineer Nemko AS authorizes the above named company to reproduce this report provided it is reproduced in its entirety and for use by the company s employees only. Any reproduction of parts of this report requires approval in writing from Nemko AS. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. Nemko AS accepts no responsibility for damages suffered by any third party as a result of decisions made or actions based on this report. This test report applies only to the items and configurations tested. Nemko AS, NO-2027 Kjeller Page 6 (57)

7 3.2 Test Summary Name of test FCC Part 15 reference RSS210 Issue 8 & RSS Gen Issue 3 Result Supply Voltage Variations 15.31(e) 4.5 Complies 1 Transmitter frequency stability 15.31(m) Complies Antenna Requirement NA 2 Power-line Conducted Emission (c) Complies 20 db bandwidth (c) - Complies Peak Power Output (a)(c) A2.9 Complies Band edge Emissions (d) A.2.9 Complies Spurious Emissions (Radiated) (e) A2.9 & 4.3 Complies Spurious Emissions (Antenna Conducted) Complies Receiver Spurious Emissions (Radiated) N/A 6 (RSS-GEN) Complies Receiver Spurious Emissions (Conducted) N/A 6 (RSS-GEN) Complies 1 The power is taken from AC mains. 2 integral antenna RSS Gen issue 3 covers section 7 & 6 RSS 210 issue 8 covers section A Description of modification for Modification Filing Not applicable. 3.4 Comments The channels are selected with a computer connected to the EUT. The computer is only used for selection of channels. The measurements are performed at channels near top Ch >, near middle Ch > and near bottom Ch >. And the output level is set to maximum in the software. The EUT complies at these channels. During radiated tests the selection of channels are done by manufacturer outside the test chamber.. The radiated measurements are tested on three axis. Power supply variation within between 85% and 115% has no influence on measured value. 3.5 Family List Rationale Not Applicable. Nemko AS, NO-2027 Kjeller Page 7 (57)

8 4 TEST RESULTS 4.1 Power-line Conducted Emissions Para. No.: (a) Test Performed By: G.Suhanthakumar Date of Test: Measurement procedure: ANSI C using 50 µh/50 ohms LISN. Test Results: Measurement Data: Complies. Peak detector was used. The measured peak values are below the Quasi-Peak and Average limit Measured at AC mains 120Vac/60Hz. Model:DPS53-M Highest measured value (L and N): The measured peak values are below the Quasi-Peak and Average limit See the attached plot for peak scans. Nemko AS, NO-2027 Kjeller Page 8 (57)

9 100.0 Date 17.Jun.'11 Time 15:00:18 Ref.Lvl Marker dbuv dbuv khz Res.Bw 9 khz[imp] TG.Lvl off Scan.Stp khz T1: PK+ T3: T2: PK+ T4: RF.Att 10 db Unit [dbuv] TL Start 150 khz Span MHz 1M Center MHz Meas.Time 30 ms 10M 30 MHz Stop FI L1 & N polarity - power line conducted emission Nemko AS, NO-2027 Kjeller Page 9 (57)

10 4.2 Transmitter Frequency Stability Para. No.: 15.31(m)/7.2.4 Test Performed By: G.Suhanthakumar Date of Test: Measurement Data: Temperature Channel nr. Given Frequency (MHz) 20 C Measured value (MHz) Deviation (Hz) Ch Ch Ch Comment: Reported for information only. There are no requirements to frequency tolerance for low power devices in the MHz band certified to or RSS 210 Nemko AS, NO-2027 Kjeller Page 10 (57)

11 db Bandwidth Para. No.: RSS-Gen Test Performed By: G.Suhanthakumar Date of Test: Test Results: Complies Measurement Data: 20 db Bandwidth (khz) Data Rate Ch 51 Ch 52 Ch MHz MHz MHz 120kbps Power supply variation within between 85% and 115% has no influence on measured value. Requirements: For information only Nemko AS, NO-2027 Kjeller Page 11 (57)

12 Ref 82 dbµv/m * RBW 100 khz VBW 300 khz * Att 10 db * SWT 50 ms Delta 1 [T1 ] 0.01 db khz 80 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF PA PS 40 3DB AC Center 903 MHz 200 khz/ Span 2 MHz Date: 16.JUN :50:16 903MHz 20 db bandwidth 480kHz Nemko AS, NO-2027 Kjeller Page 12 (57)

13 Ref 82 dbµv/m * RBW 100 khz VBW 300 khz * Att 10 db * SWT 50 ms Delta 1 [T1 ] 0.21 db khz 80 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF PA PS 40 3DB AC Center 915 MHz 200 khz/ Span 2 MHz Date: 16.JUN :45:32 915MHz 20 db bandwidth 468kHz Nemko AS, NO-2027 Kjeller Page 13 (57)

14 Ref 82 dbµv/m * RBW 100 khz VBW 300 khz * Att 10 db * SWT 50 ms Delta 1 [T1 ] 0.07 db khz 80 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF 50 PA PS 40 3DB AC Center 927 MHz 200 khz/ Span 2 MHz Date: 16.JUN :59:33 927MHz 20 db bandwidth 476kHz Nemko AS, NO-2027 Kjeller Page 14 (57)

15 4.4 Peak Power Output Para. No.: (a)/a.2,9 Test Performed By: G.Suhanthakumar Date of Test: 16-June-2011 Test Results: Complies Measurement Data: Maximum Conducted Peak Output Power RF channel 903MHz 915MHz >kbps, Measured value (dbm) Maximum Field strength RF channel 903MHz 915MHz 927MHz VP: Measured value (dbµv/m) HP: Measured value (dbµv/m) Radiated measurements are done at 3 m distance. Please see page 66 for test-setup Detachable antenna? Yes No If detachable, is the antenna connector non-standard? Yes No Reversed SMA connector Power supply variation within between 85% and 115% has no influence on measured value. Requirements: The maximum peak output power shall be 94dBµV/m Nemko AS, NO-2027 Kjeller Page 15 (57)

16 Conducted power 903MHz Nemko AS, NO-2027 Kjeller Page 16 (57)

17 Conducted power 915MHz Nemko AS, NO-2027 Kjeller Page 17 (57)

18 Conducted power 927MHz Nemko AS, NO-2027 Kjeller Page 18 (57)

19 Ref 82 dbµv/m 80 * RBW 1 MHz VBW 3 MHz * Att 10 db * SWT 50 ms 1 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF 50 PA PS 40 3DB AC Center 903 MHz 1 MHz/ Span 10 MHz Date: 16.JUN :09:39 VP: 903MHz Field strength Nemko AS, NO-2027 Kjeller Page 19 (57)

20 Ref 82 dbµv/m 80 * RBW 300 khz VBW 1 MHz * Att 10 db * SWT 50 ms Marker 1 [T1 ] dbµv/m MHz 1 A 1 PK MAXH TDF 50 PA PS 40 3DB AC Center 903 MHz 500 khz/ Span 5 MHz Date: 16.JUN :53:34 HP: 903MHz Field strength Nemko AS, NO-2027 Kjeller Page 20 (57)

21 Ref 82 dbµv/m 80 * RBW 1 MHz VBW 3 MHz * Att 10 db * SWT 50 ms 1 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF 50 PA PS 40 3DB AC Center 915 MHz 1 MHz/ Span 10 MHz Date: 16.JUN :04:16 VP: 915MHz Field strength Nemko AS, NO-2027 Kjeller Page 21 (57)

22 Ref 82 dbµv/m 80 * RBW 1 MHz VBW 3 MHz * Att 10 db * SWT 50 ms Marker 1 [T1 ] dbµv/m MHz 1 A 1 PK MAXH TDF 50 PA PS 40 3DB AC Center 915 MHz 1 MHz/ Span 10 MHz Date: 16.JUN :06:18 HP: 915MHz Field strength Nemko AS, NO-2027 Kjeller Page 22 (57)

23 Ref 82 dbµv/m 80 * RBW 1 MHz VBW 3 MHz * Att 10 db * SWT 50 ms 1 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF PA PS 40 3DB AC Center 927 MHz 1 MHz/ Span 10 MHz Date: 16.JUN :58:44 VP: 927MHz Field strength Nemko AS, NO-2027 Kjeller Page 23 (57)

24 Ref 82 dbµv/m 80 * RBW 1 MHz VBW 3 MHz * Att 10 db * SWT 50 ms 1 Marker 1 [T1 ] dbµv/m MHz A 1 PK MAXH TDF PA PS 40 3DB AC Center 927 MHz 1 MHz/ Span 10 MHz Date: 16.JUN :56:58 HP: 927MHz Field strength Nemko AS, NO-2027 Kjeller Page 24 (57)

25 4.5 Band Edge Emissions Para. No.: (d) Test Performed By: G.Suhanthakumar Date of Test: Test Results: Complies Measurement Data: Lower Band edge : RF channel MHz Measured maximum dbc Upper Band edge : RF channel MHz Measured maximum dbc See the attached graphs Requirements: Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least 50 db below the level of the fundamental. Nemko AS, NO-2027 Kjeller Page 25 (57)

26 DELTA MARKER 1 * RBW 100 khz khz * VBW 100 khz Ref dbm * Att 0 db SWT 2.5 ms Delta 1 [T1 ] db khz Offset db Marker 1 [T1 ] dbm MHz A 1 PK VIEW -30 LVL Center 902 MHz 500 khz/ Span 5 MHz Date: 15.SEP :32:47 903MHz- Lower band edge Nemko AS, NO-2027 Kjeller Page 26 (57)

27 Ref dbm * Att 0 db * RBW 100 khz * VBW 100 khz SWT 2.5 ms Delta 1 [T1 ] db MHz -20 Offset db 1 Marker 1 [T1 ] dbm MHz A 1 PK VIEW -30 LVL Center 928 MHz 500 khz/ Span 5 MHz Date: 15.SEP :30:57 927MHz- upper band edge Nemko AS, NO-2027 Kjeller Page 27 (57)

28 4.6 Spurious Emissions (Radiated) Para. No.: (e) Test Performed By: G.Suhanthakumar Date of Test: Test Results: Complies Measurement Data: According to manufacturer there is no duty cycle correction (worst case RF packets are less than 5ms). Tested item s transmission is with 100% duty cycle RF conducted emissions 9kHz to 10 GHz Maximum RF level outside operating band: RF 903MHz: dbc, margin > 20 db RF 915MHz: dbc, margin > 20 db RF 927MHz: dbc, margin > 20 db Requirements: As shown in 15.35(b), for frequencies above 1000 MHz, the field strength limits in paragraphs (a) of this section are based on average limits. However, the peak field strength of any emission shall not exceed the maximum permitted average limits specified above by more than 20 db under any condition of modulation. the peak field strength shall not exceed 2500 millivolts/meter at 3 meters along the antenna azimuth. Nemko AS, NO-2027 Kjeller Page 28 (57)

29 903MHz Conducted Spurious 9kHz 10GHz Nemko AS, NO-2027 Kjeller Page 29 (57)

30 915MHz Conducted Spurious 9kHz 10GHz Nemko AS, NO-2027 Kjeller Page 30 (57)

31 927MHz Conducted Spurious 9kHz 10GHz Nemko AS, NO-2027 Kjeller Page 31 (57)

32 Duty Cycle Calculation: Manufacturer statement: All radio communications are initiated by a PDM; therefore the default mode for the base station is receiving mode. When the PDM has sent a message, it immediately switches to receiving mode and waits for a few ms for a reply. If no reply is received, the radio in the PDM is shut of until next time its time to send a message. If an answer is received two different things can happen: 1. If the base station has no data for the PDM it only acknowledges the message. 2. If there is data for the PDM it will be sent to the PDM. In this case the PDM acknowledge the message. If the message includes a question, a data reply will be sent ~100ms afterwards that is acknowledged by the base station. Alternative 2 above is rare, and only happens when the PDM just have logged on to the base station, or a user is trying to retrieve data via the base station interface. The shortest possible message takes approximately 1ms to send including pre-amble etc. The longest possible message takes ~5ms This means duty cycle correction will be 20 db. Nemko AS, NO-2027 Kjeller Page 32 (57)

33 Radiated Emissions with antenna, 1-10 GHz, peak 1-10 GHz measured at a distance of 3m.. Measured with Peak Detector Frequency RF channel Dist. corr. factor Field strength, Peak Duty cycle corr. factor Limit Margin GHz 51,52,53 db dbµv/m db dbµv/m db > ,52,53 0 None detected Radiated emissions with antenna,1-10 GHz, Average Detector Frequency RF channel Dist. corr. factor Duty cycle corr. factor Field strength, AV Limit Margin GHz 51,52,53 db db dbµv/m dbµv/m db > ,52, None detected 54 - The maximum is observed in vertical polarization Antenna factor, amplifier gain and cable loss are included in spectrum analyzer Transducer factor. Requirement: (d) Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least 50 db below the level of the fundamental or to the general radiated emission limits in , whichever is the lesser attenuation. Nemko AS, NO-2027 Kjeller Page 33 (57)

34 903MHz 2 nd Harmonic- AV Nemko AS, NO-2027 Kjeller Page 34 (57)

35 903MHz 2 nd Harmonic- PK Nemko AS, NO-2027 Kjeller Page 35 (57)

36 915MHz 2 nd harmonic- AV Nemko AS, NO-2027 Kjeller Page 36 (57)

37 915Mhz 2 nd Harmonic PK Nemko AS, NO-2027 Kjeller Page 37 (57)

38 927MHz 2 nd harmonic- AV Nemko AS, NO-2027 Kjeller Page 38 (57)

39 927MHz 2 nd harmonic- PK Nemko AS, NO-2027 Kjeller Page 39 (57)

40 VP: pre- scan 1-10GHz Nemko AS, NO-2027 Kjeller Page 40 (57)

41 VP: pre-view scan 1-10GHz Nemko AS, NO-2027 Kjeller Page 41 (57)

42 Radiated emissions 9kHz - 30 MHz. Detector: Quasi-Peak Measuring distance 10 m. Frequency Operational condition Field strength Measuring distance Limit FCC Margin MHz dbµv/m m dbµv/m db TX on FREQUENCY Att 10 db AUTO RBW 9 khz MT 10 ms PREAMP ON khz LEVEL PK dbµv/m QPK dbµv/m TDF DB AC dbµv /m 1 PK CLRWR 110 FCC9KHZ khz 1 MHz 10 MHz 1 Marker 1 [T1 ] dbµv/m khz 9 khz 30 MHz TDF 6DB AC Date: 16.JUN :29:04 9kHz - 30MHz Nemko AS, NO-2027 Kjeller Page 42 (57)

43 Radiated emissions MHz. Detector: Peak Measuring distance 3 m. Frequency Operational condition Field strength Measuring distance Polarization Limit FCC MHz dbµv/m m - dbµv/m db Margin 62.4 TX ON VP TX ON VP TX ON VP TX ON VP TX ON VP TX on HP Nemko AS, NO-2027 Kjeller Page 43 (57)

44 dbµv /m 1 PK CLRWR FCC15C Att 10 db AUTO 1 RBW 120 khz MT 10 ms PREAMP ON MHz 3 Marker 1 [T1 ] dbµv/m MHz Marker 2 [T1 ] dbµv/m MHz Marker 3 [T1 ] dbµv/m MHz Marker 4 [T1 ] dbµv/m MHz 4 TDF DB AC MHz 200 MHz Date: 16.JUN :39:04 VP MHz Nemko AS, NO-2027 Kjeller Page 44 (57)

45 dbµv /m 50 Att 10 db AUTO RBW 120 khz MT 50 ms PREAMP ON 100 MHz Marker 1 [T1 ] dbµv/m MHz 45 1 PK CLRWR TDF 30 FCC15C DB AC MHz 200 MHz Date: 16.JUN :43:39 HP MHz Nemko AS, NO-2027 Kjeller Page 45 (57)

46 dbµv /m 1 PK CLRWR Att 10 db AUTO RBW 120 khz MT 30 ms PREAMP ON Marker 1 [T1 ] dbµv/m MHz Marker 2 [T1 ] 1 GHz dbµv/m MHz 60 TDF FCC15C 2 6DB AC MHz 1 GHz Date: 16.JUN :22:32 VP GHz Nemko AS, NO-2027 Kjeller Page 46 (57)

47 dbµv /m 1 PK CLRWR Att 10 db AUTO RBW 120 khz MT 30 ms PREAMP ON Marker 1 [T1 ] dbµv/m MHz Marker 2 [T1 ] 1 GHz dbµv/m MHz 60 1 TDF FCC15C 2 6DB AC MHz 1 GHz Date: 16.JUN :29:57 HP MHz Nemko AS, NO-2027 Kjeller Page 47 (57)

48 4.7 Receiver Spurious Emissions (Conducted) Para. No.: RSS-Gen (6) Test Performed By: G.Suhanthakumar Date of Test: Test Results: Complies Measurement Data: Conducted Emissions, 9kHz - 10 GHz, peak Measured with Peak Detector Frequency RF channel Measured value Limit Margin GHz 51,52,53 dbm dbm db > ,52,53 None detected VCO leakage detected from the receiver. Requirement(conducted): Receiver spurious emissions at any discrete frequency shall not exceed 2 nano watts in the band MHz, and 5 nano watts above 1000 MHz Nemko AS, NO-2027 Kjeller Page 48 (57)

49 903MHz: RX VCO leak Nemko AS, NO-2027 Kjeller Page 49 (57)

50 915MHz: RX VCO leak Nemko AS, NO-2027 Kjeller Page 50 (57)

51 927MHz: RX VCO leak Nemko AS, NO-2027 Kjeller Page 51 (57)

52 RX: 903MHz 9kHz - 10GHz Nemko AS, NO-2027 Kjeller Page 52 (57)

53 RX: 915MHz 9kHz - 10GHz Nemko AS, NO-2027 Kjeller Page 53 (57)

54 RX: 927MHz 9kHz - 10GHz Nemko AS, NO-2027 Kjeller Page 54 (57)

55 5 LIST OF TEST EQUIPMENT To facilitate inclusion on each page of the test equipment used for related tests, each item of test equipment and ancillaries are identified (numbered) by the Test Laboratory. No. Model number Description Manufacturer Ref. no. Cal. date Cal. Due 1. ESCI EMI Receiver Rohde & Schwarz N FSEK 1088,3494,30 Spectrum Analyzer R&S Antenna horn EMCO LR Antenna horn Narda LR Antenna horn Narda LR PM7320X Antenna horn Sivers lab LR DBF Antenna horn Systron Donner LR Antenna horn Narda LR Sucoflex 102E Cable microwave Suhner LR A Power supply HP LR Multimeter, Digital Fluke LR B Amplifier Hewlett Packard LR HFH2-Z2 Antenna loop Rohde and Schwarz LR A Amplifier Hewlett Packard LR HL223 Antenna log.per Rohde & Schwarz LR HK116 Antenna biconic Rohde & Schwarz LR ESN Test Receiver Rohde & Schwarz LR ESH3-Z3 LISN Rohde & Schwarz LR B504D Power supply Oltronix LR ESAI EMI Receiver Rohde & Schwarz LR 1090/ ESH3-Z2 Pulse Limiter Rohde & Schwarz LR Nemko AS, NO-2027 Kjeller Page 55 (57)

56 6 BLOCK DIAGRAM 6.1 System set up for radiated measurements DoseAeare Base station (EUT) AC mains AC/DC adapter Test equipment: 2, 3, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, Power line Conducted Emission Shielded Room EUT LISN Test Receiver Test equipment: 17,18,19,20,21 Nemko AS, NO-2027 Kjeller Page 56 (57)

57 6.3 Test Site Radiated Emission Anechoic Chamber Antenna H = 1-4 m EUT Non-conducting support on Turntable, H = 0.8m Ground Plane Test Receiver Shielded Room Nemko AS, NO-2027 Kjeller Page 57 (57)